Recently I reintalled Windows 8. All software that I installed on fresh OS is up to date and Windows 8 compatible.

When I try to open context menu explorer was crashing. I used CCleaner to fix registry errors and after fixing it seems explorer doesn't crash again but when I open context menu it hangs about 5-10 seconds. There are several context menu elements like screenshot below

that doesn't appear on shellex branch of registry. I can't disable them neither from regedit nor from applications itself like Kaspersky or Nvidia control panell.

I did as shown. This module hasn't fixed problem but registry cleaner found about 5000 errors and fixed. After this my right click works like a charm. The question is, how fresh OS can collect about 5000 errors in registry? And can I trust this type of software?
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Tural AliyevMar 31 '13 at 19:02

It is rated #1 in CNET. That's why I use it. Having said that, don't use it too frequently. Once in a month or two should be enough. And the module didn't show any of your context menu entries? Weird
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pratnalaApr 1 '13 at 2:06

Also, installing many softwares successively after a fresh install can cause this. I usually stagger it over a week or two.
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pratnalaApr 1 '13 at 2:08